Seiko Cal. 5640 - 658

Seiko 5640-658

This Solar model from 1991 features a 46mm Hardlex-Coated Steel case. The Bidirectional bezel and 46mm case give it a distinctive presence on the wrist. [seikata-wm-33e9786f3af5]

Also known as: Panda, Bellmatic

Specifications

Movement
Solar
Case Material
Hardlex-Coated Steel
Case Width
46mm
Case Thickness
15.9mm
Lug Width
21mm
Crystal
Mineral
Bezel
Bidirectional
Water Resistance
30m
Dial Color
White
Jewels
20j
Frequency
28,800 bph
Power Reserve
64 hours
Year
1991

Related Models

seikata-wm-33e9786f3af5